Fastening for double doors



(Model.)

G. W. WRIGHT.

FASTENING FOR DOUBLE DOORS. 333,093.

Patented Dec.. 22, 18

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ATTORNEYS.

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2 SheetsSheet 1.v

UNITED STATES PATENT OFFICE.

onoaenw. WRIGHT, on LEAVENWORTH, INDIANA.

FASTENING FOR DOUBLE DOORS.

SPECIFICATION forming part of Letters Patent No. 333,093, dated December 22. 1885.

Application filed J une 16, 1885. Serial No. 168,880. (Model.)

I To all whom it may concern.-

Be it known that I, GEORGE W. WRIGHT, of Leavenworth, in the county of Crawford and State of Indiana, have invented a new.

and Improved Door-Fastener, of which the following isa full, clear, and exact description.

The object of my invention is to provide a new and improved door fastener for'secu'rely and conveniently fastening and locking double doors.

The invention consists of a combination and arrangement of bolts and a guiding-plate placed on one door and operated by levers,

rack and pinion, of devices for locking the levers when the doors are closed or opened,of

arms attached to the bolts, which are placed in recesses of the bolts of the other door,

whereby the bolts of one door lock or unlock the bolts of the other door, and of abolt operated by the levers.

The invention also consists of various parts and details hereinafter more fully set forth and described.

Reference is to be had to the accompanying drawings,forming'part of this specification,in

- which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is afron't elevation of the inside of adouble door, showing my improved doorfastener in a locked position. Fig. 2 is a front elevation of the same, showing one door pivoted an arm, D, fastened to a bar, D,.

placed in the guiding-plate E, which is provided with an arm, E, on the outer lower edge of which are formed teeth E, which mesh in corresponding teeth on the pinion F, attached to the shaft F, which is placed on the door A, and provided with a knob,F for turning the pinion F. The guiding-plate Eis held in slides G G, and the arm E isheld in the slide G, attached to thedoor A, and in the slide G secured on the face of the vertical plate H. Through the upper end of the plate H and the door A passes a shaft, I, provided on each end with aknob, I, on the inside and the outside of the door A. The. L-shaped lever J is fulcrumed on the shaft I, and placed between the door A and the plate H, and a similar lever,K,is fulcrumed on the stud I ,secured to the lower end of the plate H and the 1 door A. The arm J of the lever J and the arm K of the lever K are each provided with V forked ends, which mesh into each other, so

that when either knob I is turned the levers,

J and K move simultaneously. The other arm, J", of the lever J, and the otherarm, K, of the lever K are each provided, on their outer ends with a roller, J and K respectively, which are placed in recesses D or D on the bar D. These recesses D and D are formed in the under side of the bars D, having a portion D between them- The arm K is provided with an arm, K, having a pin, K, which can be engaged by the looking device L, of suitable construction, and operated by a key, L, so that the 1ever,K,and consequently the lever J, can be held locked, asshown in Fig. 1, or unlocked, as shown in Figs. 2 and 3, by the device L. To the forked end of the arm K of the lever K is attacheda stud, K, which extends into a recess, N,

formed on the bolt N and slides the bolt N forward or backward, according to the motion of the levers J and K. The bolt N is held inv place by the guide N secured tothe door A,

and the outer end, N of the bolt N reaches over to the door A, when both doors A and A are in a locked condition, and enters the keeper M, secured to the door A. The door A is provided with a'shaft, to which is attached the knob O and an arm, 0, to lock the arm J of lever J when the door A is open. The

door A is also provided with suitable stops, P

P, to limit the movement of the lever-arms J and K, and a stop, P, to limit the motion of the arm E. The door A is provided near its inner edge, at the top and bottom,with the bolt-cases Q and Q, in each of which is placed a bolt, R, held in place by a spring, Q The bolts R are each provided with a recess, R, in which are placed the outer ends of the arms 0 of the bolts 0 and C. When both doors A and A are looked, as shown in Fig. 1, the ends of the bolts 0, G, and R are engaged in recesses or sockets formed in the door-frame.

The operation isas follows: The door A is unlocked by turning the knob I in the direction of the arrow at, Fig. 1, whereby the bolts 0 O are drawn toward each other and released from the recesses in the door-frame by means of the lever-arms J and K acting on the bars D D, with the rollers J and K engaged in the recesses D D of the bars D D. The movement of the levers J and K also causes the bolt N to be withdrawn from the keeper M on the door A. The door A is nowunfastened and can be swung open.

To unlock the door A by the fastening device of the door A, it is necessary that the door A is not swung open, but left in the un; locked position, as before described, so that the arms 0 of the bolts 0 and 0 remain in their respective recesses R of the bolts R, and the ends of the latter, extending beyond the ends of the bolts 0 and G, are not yet released from their recesses in the door-frame. The pinion F is turned by turning the knob F in the direction of the arrow b, Fig. 1, whereby the arm E and the guiding-plate E are caused to slide in the direction of the arrow 0 and attain the position shown in Fig. 2. The bars D D are thereby placed in an inclined position, and the rollers J and K are displaced from the recesses D" in the bars D D. The knob Iis now turned in an opposite direction from the arrow a, so that the levers J and K assume the same inclined position, as shown in Fig. 1, and the motion of the pinion F being reversed, causes the guide-plate E and the bars-D D to resume their former position; but the rollers J and K will now enter the recesses D on the bars D D, as shown in Fig. 3, and when the knob l is again turned in the direction of the arrow at it will cause the bolts R R to be withdrawn from their respective recesses in the door-frame by means of the arms 0 of the bolts 0 and C, and the rods D and bars D D being drawn toward each other by the action of the levers J and Kwith their rollers J and K in the recesses D of the bars D D, both doors A and A can now be swung open.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a door-fastener, the bolts 0 and O, the pivoted rods D,and the bars D, having recesses D and D in combination with the levers J and K. substantially as shown and described.

2. In a door-fastener, the bolts Oand O, the pivoted rods D,the bars D, having recesses D and D and the guiding-plate E, in combination with the levers J and K and the rollers J and K substantially as shown and described.

3. In a door-fastener, the bolts Oand O, the pivoted rods D, the bars D, the guiding-plate E, and the arm E, provided with teeth E, in combination with pinion F, the shaft F, and the knob F, substantially as shown and described.

4. In a door-fastener, the bolts 0 and C, the

pivoted rods D, the bars D, having recesses D and D the levers J and K, the guidingplate E, the arm E, and the teeth E", in combination with the pinion F, the shaft F, and the knob F, substantially as shown and described.

5. In a door-fastener, the bolts 0 and G, the pivoted rods D,the bars D, having recesses D and D the guiding-plate E, the levers J and K, the shaft I, the knobs I, the arm K, and the pin K in combination with the locking device L, substantially as shown and described.

6. In a door-fastener, the levers J and K, having the arms J and K, forked at their ends, and the pin K, in combination with the bolt N, havingarecess, N, substantially as shown and described.

7 In a door-fastener, the bolts 0 and O, the arm 0 the pivoted rods D, the bars D, having recesses D and D the guiding-plate E, and the leversJand K, in combination with the bolts R, having the recesses R, substantially as shown and described.

8. In a door-fastener, the bolts 0 and O, the

arms 0*, the pivoted rods D, the bars D, having the recesses D and D", the rollers J and K, the levers J and K, the shaft I, the knobs 9 I, the guiding-plate E, the arm E, the teeth E, the pinion F, the shaft F, and the knob F all arranged and operating substantially as described, in combination with the bolts R, having the recess R, the bolt-case Q, and the spring Q, substantially as set forth and described.

GEORGE W. WRIGHT. Witnesses:

ROBERT H. KAMP, ROBERT ROAOH.

IOO 

